Virginia Madsen has signed up to join Kevin Spacey in Father of Invention, the indie comedy about a billionaire inventor who loses everything, goes to jail and emerges to try to rebuild his life.

Spacey's the inventor, and Madsen plays his ex, who spends what's left of his fortune and remarries while he's languishing in prison (but also, y'know, becoming a better person and less of an egomaniacal git).

Camilla Belle, Craig Robinson and Heather Graham are also starring in the film, which Trent Cooper is directing. Filming's already started, so look out for this early next year, we're guessing.

According to Kevin Spacey's Twitter page, filming has laready finished and he found Heather Graham to be really great to work with. No mention of Virginia Madsen though...Hmmmm, advertise Twitter Empire, but dont keep up? More